Example usage for org.springframework.core.io Resource getInputStream

Introduction

In this page you can find the example usage for org.springframework.core.io Resource getInputStream.

Prototype

InputStream getInputStream() throws IOException;

Source Link

Document

Return an InputStream for the content of an underlying resource.

Usage

From source file:com.themodernway.server.core.io.IO.java

public static final long checksum(final Resource resource) throws IOException {
    try (CheckSumInputStream check = new CheckSumInputStream(resource.getInputStream())) {
        IO.copy(check, new NoOpOutputStream());

        return check.getChecksum().getValue();
    }/* w w  w . j a  v a2 s. co  m*/
}

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From source file:com.themodernway.server.core.io.IO.java

public static final String getStringAtMost(final Resource resource, final long leng, final long slop)
        throws IOException {
    try (InputStream stream = resource.getInputStream()) {
        return IO.getStringAtMost(stream, leng, slop);
    }//ww  w .  j a va  2 s  . c o m
}

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From source file:com.themodernway.server.core.io.IO.java

public static final long checksum(final Resource resource, final Checksum ck) throws IOException {
    try (CheckSumInputStream check = new CheckSumInputStream(resource.getInputStream(), ck)) {
        IO.copy(check, new NoOpOutputStream());

        return check.getChecksum().getValue();
    }/*from   www .j a  v  a  2  s  .co m*/
}

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From source file:com.themodernway.server.core.io.IO.java

public static final long copy(final Resource resource, final Writer output, long length) throws IOException {
    if ((length = Math.max(0L, length)) > 0L) {
        try (InputStream stream = resource.getInputStream()) {
            return IO.copy(stream, output, length);
        }/*from   www.  j  a v a2s.  c  o m*/
    }
    return length;
}

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From source file:com.themodernway.server.core.io.IO.java

public static final long copy(final Resource resource, final OutputStream output, long length)
        throws IOException {
    if ((length = Math.max(0L, length)) > 0L) {
        try (InputStream stream = resource.getInputStream()) {
            return IO.copy(stream, output, length);
        }//from  w  ww .j a v  a  2  s .c o  m
    }
    return length;
}

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From source file:fi.solita.phantomrunner.util.FileUtils.java

/**
 * Extracts the given resource to user's temporary directory (by creating a unique directory underneath
 * it). Will delete that file and created directories on system exit if deleteOnExit is true.
 * //  w  ww .jav a2s  .  com
 * @param resource Resource to be extracted
 * @param subPath Slash (character '/') separated path of the sub-directories which should be created
 * @param deleteOnExit If the resource and created sub-directories should be deleted
 * 
 * @return File handle to the created file in the temporary directory
 */
public static File extractResourceToTempDirectory(Resource resource, String subPath, boolean deleteOnExit)
        throws IOException {
    final File tempDir = Files.createTempDir();
    if (deleteOnExit)
        tempDir.deleteOnExit();

    File lastDir = tempDir;
    for (String subDir : subPath.split("/")) {
        // if the subPath starts or ends with '/' we'll get empty strings too
        if (StringUtils.hasLength(subDir)) {
            lastDir = new File(lastDir, subDir);
            lastDir.mkdir();
            if (deleteOnExit)
                lastDir.deleteOnExit();
        }
    }

    final File resFile = new File(lastDir, resource.getFilename());
    resFile.createNewFile();
    if (deleteOnExit)
        resFile.deleteOnExit();

    IOUtil.copy(resource.getInputStream(), new FileWriter(resFile), "UTF-8");

    return resFile;
}

---

From source file:org.jamwiki.utils.ResourceUtil.java

/**
 * Given a file name for a file that is located somewhere in the application
 * classpath, return a File object representing the file.
 *
 * @param filename The name of the file (relative to the classpath) that is
 *  to be retrieved./*from  ww  w.j a va 2s .co m*/
 * @return A file object representing the requested filename.  Note that the
 *  file name is not guaranteed to match the filename passed to this method
 *  since (for example) the file might be found in a JAR file and thus will
 *  need to be copied to a temporary location for reading.
 * @throws IOException Thrown if the classloader can not be found or if
 *  the file can not be found in the classpath.
 */
public static File getClassLoaderFile(String filename) throws IOException {
    // note that this method is used when initializing logging, so it must
    // not attempt to log anything.
    Resource resource = new ClassPathResource(filename);
    try {
        return resource.getFile();
    } catch (IOException e) {
        // does not resolve to a file, possibly a JAR URL
    }
    InputStream is = null;
    FileOutputStream os = null;
    try {
        // url exists but file cannot be read, so perhaps it's not a "file:" url (an example
        // would be a "jar:" url).  as a workaround, copy the file to a temp file and return
        // the temp file.
        String tempFilename = RandomStringUtils.randomAlphanumeric(20);
        File file = File.createTempFile(tempFilename, null);
        is = resource.getInputStream();
        os = new FileOutputStream(file);
        IOUtils.copy(is, os);
        return file;
    } finally {
        IOUtils.closeQuietly(is);
        IOUtils.closeQuietly(os);
    }
}

---

From source file:com.netxforge.oss2.core.xml.CastorUtils.java

/**
 * Unmarshal a Castor XML configuration file.  Uses Java 5 generics for
 * return type and throws DataAccessExceptions.
 *
 * @param clazz the class representing the marshalled XML configuration file
 * @param resource the marshalled XML configuration file to unmarshal
 * @return Unmarshalled object representing XML file
 * @throws DataAccessException if the resource could not be opened or the
 *      underlying Castor/* w  ww  .ja v a2 s. c om*/
 *      Unmarshaller.unmarshal() call throws a MarshalException or
 *      ValidationException.  The underlying exception will be translated
 *      using MarshallingExceptionTranslator and will include information about
 *      the resource from its {@link Resource#toString() toString()} method.
 */
public static <T> T unmarshalWithTranslatedExceptions(Class<T> clazz, Resource resource,
        boolean preserveWhitespace) {
    // TODO It might be useful to add code to test for readability on real files; the code below is from DefaultManualProvisioningDao - dj@opennms.org 
    //        if (!importFile.canRead()) {
    //            throw new PermissionDeniedDataAccessException("Unable to read file "+importFile, null);
    //        }

    InputStream in;
    try {
        in = resource.getInputStream();
    } catch (IOException e) {
        throw CASTOR_EXCEPTION_TRANSLATOR
                .translate("opening XML configuration file for resource '" + resource + "'", e);
    }

    try {
        InputSource source = new InputSource(in);
        try {
            source.setSystemId(resource.getURL().toString());
        } catch (Throwable t) {
            /*
             * resource.getURL() might throw an IOException
             * (or maybe a DataAccessException, since it's a
             * RuntimeException), indicating that the resource can't be
             * represented as a URL.  We don't really care so much--we'll
             * only lose the ability for Castor to include the resource URL
             * in error messages and for it to directly resolve relative
             * URLs (which we don't currently use), so we just ignore it.
             */
        }
        return unmarshal(clazz, source, preserveWhitespace);
    } catch (MarshalException e) {
        throw CASTOR_EXCEPTION_TRANSLATOR.translate("unmarshalling XML file for resource '" + resource + "'",
                e);
    } catch (ValidationException e) {
        throw CASTOR_EXCEPTION_TRANSLATOR.translate("unmarshalling XML file for resource '" + resource + "'",
                e);
    } finally {
        IOUtils.closeQuietly(in);
    }
}

---

From source file:de.ingrid.iplug.ckan.utils.ScriptEngine.java

/**
 * Execute the given scripts with the given parameters
 * @param scripts The script files/*from   w  w  w .ja v  a 2  s  .co  m*/
 * @param parameters The parameters
 * @param compile Boolean indicating whether to compile the script or not
 * @return Map with the absolute paths of the scripts as keys and the execution results as values
 * If an execution returns null, the result will not be added
 * @throws Exception
 */
public static Map<String, Object> execute(Resource[] scripts, Map<String, Object> parameters, boolean compile)
        throws Exception {

    Map<Integer, Bindings> bindings = new Hashtable<Integer, Bindings>();
    Map<String, Object> results = new Hashtable<String, Object>();

    for (Resource script : scripts) {
        // get the engine for the script
        javax.script.ScriptEngine engine = getEngine(script);

        // initialize/get the bindings
        if (!bindings.containsKey(engine.hashCode())) {
            Bindings newBindings = engine.createBindings();
            newBindings.putAll(parameters);
            bindings.put(engine.hashCode(), newBindings);
        }
        Bindings curBindings = bindings.get(engine.hashCode());

        // execute the script
        CompiledScript compiledScript = null;
        Object result = null;
        if (compile && (compiledScript = getCompiledScript(script)) != null) {
            result = compiledScript.eval(curBindings);
        } else {
            result = engine.eval(new InputStreamReader(script.getInputStream()), curBindings);
        }
        if (result != null) {
            results.put(script.getFilename(), result);
        }
    }
    return results;
}

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From source file:org.jahia.modules.external.test.db.WriteableMappedDatabaseProvider.java

private static void extract(JahiaTemplatesPackage p, org.springframework.core.io.Resource r, File f)
        throws Exception {
    if ((r instanceof BundleResource && r.contentLength() == 0)
            || (!(r instanceof BundleResource) && r.getFile().isDirectory())) {
        f.mkdirs();/*from  ww w .  j a  v  a 2  s  .co m*/
        String path = r.getURI().getPath();
        for (org.springframework.core.io.Resource resource : p
                .getResources(path.substring(path.indexOf("/toursdb")))) {
            extract(p, resource, new File(f, resource.getFilename()));
        }
    } else {
        FileOutputStream output = null;
        try {
            output = new FileOutputStream(f);
            IOUtils.copy(r.getInputStream(), output);
        } finally {
            IOUtils.closeQuietly(output);
        }
    }
}

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